The still photo is very misleading..... the cat is clearly making a vertical jump,aided by the use of a trampoline hidden from shot on the floor in between the launch and landing surface
Been watching my neighbour's cat closely recently - it's always jumping from neighbour's wall onto the flat roof above my kitchen.
Now it's a seriously easy jump for a cat - barely a metre. Here's the thing - he always jumps just enough to just make it. Never overshoots it by even a few inches. Always minimal effort required to accomplish the task at hand.
Cat's definitely making the jump, and he's casual about it too.